CN223630908U - Secondary ejection mechanism - Google Patents
Secondary ejection mechanismInfo
- Publication number
- CN223630908U CN223630908U CN202423302887.8U CN202423302887U CN223630908U CN 223630908 U CN223630908 U CN 223630908U CN 202423302887 U CN202423302887 U CN 202423302887U CN 223630908 U CN223630908 U CN 223630908U
- Authority
- CN
- China
- Prior art keywords
- ejector plate
- ejection
- plate
- ejector
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
本实用新型涉及注塑模具技术领域，具体地说是一种二次顶出机构，设有下模板，下模板的左右两侧分别连接下模座，其特征在于所述的下模座之间的下模板上设有上顶针板和下顶针板，下顶针板的下端面设有二次顶出槽，所述的二次顶出槽内插入二次顶针板，二次顶针板与下顶针板的二次顶出槽槽底之间经插头插接，上顶针板和下顶针板上设有对应的二次顶出孔，二次顶出杆与二次顶针板固定连接，二次顶出杆的上端依次伸出下顶针板和上顶针板上的二次顶出孔后与模块连接，具有结构简单、顶出效果好、占用空间小、制作成本低等优点。
This utility model relates to the field of injection mold technology, specifically a secondary ejection mechanism. It includes a lower mold plate, with lower mold bases connected to its left and right sides. The lower mold plate between the lower mold bases is equipped with an upper ejector plate and a lower ejector plate. The lower end face of the lower ejector plate has a secondary ejection groove. A secondary ejector plate is inserted into the secondary ejection groove, and the secondary ejector plate and the bottom of the secondary ejection groove of the lower ejector plate are connected via a plug. The upper and lower ejector plates have corresponding secondary ejection holes. A secondary ejection rod is fixedly connected to the secondary ejector plate, and the upper end of the secondary ejection rod extends sequentially from the secondary ejection holes on the lower and upper ejector plates before connecting to the module. This mechanism has advantages such as simple structure, good ejection effect, small space occupation, and low manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a secondary ejection mechanism which has the advantages of simple structure, good ejection effect, small occupied space and low manufacturing cost.
Background
As is well known, in the injection molding field, two ejector mechanisms are required to realize the demolding process of a product, after one ejector mechanism ejects, the other ejector mechanism acts to realize demolding, but the existing secondary ejection structure requires two groups of ejector plates to realize secondary ejection (each group of ejector plates comprises an ejector plate and an ejector bottom plate), and the following two defects can exist:
1. The two groups of ejector plates can increase the height of the die carrier, which may result in larger tonnage of the injection molding machine during production, large occupied space and increased production cost.
2. The two groups of ejector pin plates are nonstandard die frames, and are required to be customized, so that the cost of the die frames can be increased.
Disclosure of Invention
The utility model aims to solve the defects of the prior art and provide the secondary ejection mechanism which has the advantages of simple structure, good ejection effect, small occupied space and low manufacturing cost.
The technical scheme adopted for solving the technical problems is as follows:
The secondary ejection mechanism is provided with a lower die plate, the left side and the right side of the lower die plate are respectively connected with a lower die base, and the secondary ejection mechanism is characterized in that an upper ejector plate and a lower ejector plate are arranged on the lower die plate between the lower die bases, a secondary ejection groove is formed in the lower end face of the lower ejector plate, a secondary ejector plate is inserted into the secondary ejection groove, the bottoms of the secondary ejection grooves of the secondary ejector plate and the lower ejector plate are inserted through a plug, corresponding secondary ejection holes are formed in the upper ejector plate and the lower ejector plate, the secondary ejector rods are fixedly connected with the secondary ejector plates, and the upper ends of the secondary ejector rods sequentially extend out of the secondary ejection holes in the lower ejector plate and the upper ejector plate and then are connected with a module.
The upper ejector plate and the lower ejector plate are provided with limiting ejector holes matched with the limiting ejector columns, the lower ends of the limiting ejector columns are connected with the secondary ejector plate, and the upper ends of the limiting ejector columns sequentially penetrate through the limiting ejector holes of the lower ejector plate and the upper ejector plate and extend out of the limiting ejector holes of the upper ejector plate.
The upper end of the lower die holder is connected with the middle die plate, the middle die plate is provided with a molding lower die core, the molding lower die core is fixedly connected with the middle die plate, and a gap between the upper end of the limiting ejection column and the lower end surface of the middle die plate is a synchronous ejection gap of the upper ejector plate and the lower ejector plate.
The lower template is provided with the guide posts, the upper ejector plate and the lower ejector plate are respectively provided with the guide holes correspondingly, the lower ends of the guide posts are connected with the lower template, and the upper ends of the guide posts penetrate through the guide holes of the upper ejector plate and the lower ejector plate and then are connected with the middle template.
The upper ejector plate is provided with a guide reset column, a middle template above the guide reset column is provided with a guide reset hole, the lower end of the guide reset column is fixedly connected with the upper ejector plate, the upper end of the guide reset column penetrates into the guide reset hole of the middle template, and a reset spring is sleeved on the guide reset column between the upper ejector plate and the middle template.
The upper ejector plate is provided with a demolding ejector rod, the lower end of the demolding ejector rod is fixedly connected with the upper ejector plate, the upper end of the demolding ejector rod penetrates through a through hole in the middle template and then is inserted into the bottom of a die cavity of the die core, and a molded product is ejected through the demolding ejector rod.
Due to the adoption of the structure, the utility model has the advantages of simple structure, good ejection effect, small occupied space, low manufacturing cost and the like.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a bottom view of the lower template of fig. 1.
Fig. 3 is a cross-sectional view of fig. 1.
Fig. 4 is a cross-sectional view in another direction of fig. 1.
Fig. 5 is a perspective view in the top view of fig. 1.
Fig. 6 is a schematic view of the internal structure of fig. 1 without the lower die holder, the middle die plate and the lower die core.
Fig. 7 is a schematic view of the structure of the molding lower mold core.
Fig. 8 is a schematic structural view of the middle mold plate.
Fig. 9 is a schematic view of the structure of the upper ejector plate.
Fig. 10 is a schematic view of the structure of the lower ejector plate.
Fig. 11 is a schematic view of another orientation of the middle mold of fig. 8.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
As shown in the drawing, a secondary ejection mechanism is provided with a lower die plate 1, the left side and the right side of the lower die plate 1 are respectively connected with a lower die base 2, and is characterized in that an upper ejector plate 3 and a lower ejector plate 4 are arranged on the lower die plate 1 between the lower die bases 2, a secondary ejection groove 5 is arranged on the lower end face of the lower ejector plate 4, a secondary ejector plate 6 is inserted into the secondary ejection groove 5, the secondary ejector plate 6 is inserted into the bottom of the secondary ejection groove 5 of the lower ejector plate 4 through a plug 7, corresponding secondary ejection holes 9 are formed in the upper ejector plate 3 and the lower ejector plate 4, the secondary ejector rods are fixedly connected with the secondary ejector plates 6, and the upper ends of the secondary ejector rods sequentially extend out of the lower ejector plate 4 and the secondary ejection holes 9 on the upper ejector plate 3 and are connected with a module.
Further, the secondary ejector plate 6 on connect spacing ejector pin 8, be equipped with on last ejector plate 3 and the lower ejector plate 4 with spacing ejector pin 8 complex spacing ejector hole, the lower extreme of spacing ejector pin 8 is connected with secondary ejector plate 6, the upper end of spacing ejector pin 8 passes down ejector plate 4 and the spacing ejector hole 10 of last ejector plate 3 in proper order to stretch out the spacing ejector hole 10 of last ejector plate 3.
Further, the upper end of the lower die holder 2 is connected with the middle die plate 11, the middle die plate 11 is provided with a molding lower die core 12, the molding lower die core 12 is fixedly connected with the middle die plate 11, and a gap between the upper end of the limiting ejection column 8 and the lower end surface of the middle die plate 11 is a synchronous ejection gap of the upper ejector plate 3 and the lower ejector plate 4.
Further, a guide post 13 is installed on the lower template 1, guide holes 14 are correspondingly formed in the upper ejector plate 3 and the lower ejector plate 4 respectively, the lower end of the guide post 13 is connected with the lower template 1, and the upper end of the guide post 13 passes through the guide holes 14 of the upper ejector plate 3 and the lower ejector plate 4 and then is connected with the middle template 11.
Further, the upper ejector plate 3 is provided with a guide reset column 15, the middle die plate 11 above the guide reset column 15 is provided with a guide reset hole 17, the lower end of the guide reset column 15 is fixedly connected with the upper ejector plate 3, the upper end of the guide reset column 15 penetrates into the guide reset hole 17 of the middle die plate 11, and a reset spring 16 is sleeved on the guide reset column 15 between the upper ejector plate 3 and the middle die plate 11.
Further, the upper ejector plate 3 is provided with a demolding ejector rod 18, the lower end of the demolding ejector rod 18 is fixedly connected with the upper ejector plate 3, the upper end of the demolding ejector rod 18 penetrates through the through hole in the middle mold plate 11 and then is inserted into the bottom of the mold cavity of the mold core, and the molded product is ejected out through the demolding ejector rod 18.
The plug 7 is a plastic column, the upper end of the plastic column is fixedly connected with the lower thimble plate 4, and the lower end of the plastic column is inserted into the jack formed by the secondary thimble plate 6.
Taking an injection molding three-way pipe as an example, the mold is manufactured and assembled, and the concrete structure is as follows:
The die comprises an upper die plate, an upper forming die core, a lower forming die core 12, a middle die plate 11, a lower die plate 1, a lower die base 2, an upper ejector plate 3, a lower ejector plate 4 and a secondary ejector plate 6, wherein the upper forming die core is arranged on the lower end face of the upper die plate, the upper die plate and the upper forming die core are respectively arranged at the output end of a press (the concrete structure and the connection relation of the upper forming die core are the prior art, the position in the figure is not repeated), the upper end face of the middle die plate 11 is connected with the lower forming die core 12, the upper forming die core and the upper forming die form the external shape of a two-way pipe part on the same plane in a three-way pipe, the lower forming die core 12 is provided with a forming module of a third through pipe, the forming module is a left module 19 and a right module 20, the left module 19 is in sliding connection with a sliding chute of the middle die plate 11, the right module 20 is connected with a secondary ejector rod extending into a die core sliding hole arranged on the lower forming die core 12, an end forming hole is arranged on the lower forming mold core 12 below the forming hole after the left module 19 and the right module 20 are assembled, a barrel 21 is arranged in the end forming hole, an outer cylinder of the barrel 21 is matched with the outer wall of the end forming hole, an inner rod of the barrel 21 stretches into the forming hole after the left module 19 and the right module 20 are assembled, two ends of a two-way pipe part on the same plane in the three-way pipe are respectively provided with an inner inserting core block, one end of the inner inserting core block is inserted into an upper forming mold core and is in butt joint with the lower forming mold core 12, the other end of the inner inserting core block stretches out of the upper forming mold core and the lower forming mold core 12 and is in sliding connection with a sliding groove 22 on the middle mold plate 11 through a sliding block, a gap between the top of the barrel 21 and the left module 19 and the right module 20, a gap between the upper forming mold core and the lower forming mold core 12 and the inner inserting core block respectively form a forming mold cavity of the three-way pipe, because the outer end of the end part of the pipe body formed by the left module 19 and the right module 20 in the three-way pipe is provided with an expansion part, the pipe body cannot be directly ejected and demoulded, and a secondary ejection mechanism is needed for auxiliary demould;
The module in the secondary ejection mechanism is right module 20, the secondary ejector rod includes ejection diagonal rod 23, ejection slide 24, ejection diagonal rod 23's upper end and right module 20 be connected, ejection diagonal rod 23's lower extreme connect T type slide 28, ejection slide 24's upper end is equipped with T type spout 29, ejection diagonal rod 23's lower extreme T type slide 28 and ejection slide 24 upper end's T type spout 29 sliding connection, ejection diagonal rod 23's ejection slide 24 upper end stretches out the up end of ejector plate 4 down, ejection diagonal rod 23's ejection slide 24 lower extreme passes behind the secondary ejector hole 9 on ejector plate 3 and the lower faller 4 in proper order and is connected with secondary ejector plate 6, well mould 11 on be equipped with the swing hole 25 that supplies ejection diagonal rod 23 to remove, the slide fit that swing hole 25 and shaping lower mold core 12 were equipped with supplies ejection diagonal rod 23 to swing in swing hole 25 and mold core slide 26, ejector plate 21's urceolus lower extreme passes middle mould 11, upper plate 3, ejector plate 4 and ejector plate 6 are connected with ejector plate 4 down, the ejector plate 1 down end is equipped with ejector plate 3, ejector plate 4 down-pin plate 4 is connected with ejector plate 4 down, the top plate 1 down, ejector plate 1 down end-pin hole, ejector plate 1 down pin hole 2 is connected with ejector plate down, ejector plate down pin 4 down, the mode is equipped with the top plate down, and ejector plate 1 down pin hole 2 is connected in proper order, ejector plate down, and the top plate 1 down, and the mode is connected with ejector plate down, and the top plate down.
The above-mentioned cope match-plate pattern, shaping lower mold core 12, well template 11, lower bolster 1, die holder 2, go up thimble board 3, down thimble board 4, secondary thimble board 6, left module 19, right module 20, insert the pellet, the department's section of thick bamboo 21 cooperate the combination and carry out the injection molding, the design of injection molding pipeline is prior art, and the time is unnecessary, carries out the drawing of patterns after the completion of moulding plastics, and the step of drawing of patterns is as follows:
Firstly, the upper die plate and the upper die core are moved upwards, the upper part of the molded product is demolded, the inserted core block and the left die block 19 are separated from the molded product under the drive of the sliding block, after the upper part demolding is finished, the ejection shaft extends into the ejection shaft hole 27 of the lower die plate 1 and then moves upwards together with the lower ejector plate 4, the upper ejector plate 3, the right die block 20, the ejection inclined rod 23, the ejection sliding seat 24 and the outer cylinder of the ejector barrel 21, the demolding ejector rod 18 on the upper ejector plate 3 ejects the molded product out of the lower die core 12, when the upper ejector plate 3 moves to the position limiting ejector post 8 to be contacted with the lower end face of the middle die plate 11 (the ejection distance can be set to be 37 mm), the upper ejector plate 3 and the lower ejector plate 4 can continuously move upwards, but due to the limitation of the position limiting ejector post 8, the secondary ejector plate 6 and the lower ejector plate 4 are ejected out of the lower ejector plate 4 against the resistance of the plug 7, in the process of removing the secondary ejector plate 6 and moving the upper ejector plate 3 upwards, the ejector inclined rod 23 slides on the ejector sliding seat 24, the ejector inclined rod 23 drives the right module 20 to expand outwards to separate from the expanded part of the lower end of the formed three-way pipeline, the outer cylinder of the ejector cylinder 21 moves the upper end (the moving distance can be set to 20 mm) of the inner rod of the ejector cylinder 21 in the process of moving the upper ejector plate 3 upwards, and simultaneously the lower end of the three-way pipeline is completely separated from the inner rod of the ejector cylinder 21, so that the whole demolding process is finished.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423302887.8U CN223630908U (en) | 2024-12-31 | 2024-12-31 | Secondary ejection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423302887.8U CN223630908U (en) | 2024-12-31 | 2024-12-31 | Secondary ejection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223630908U true CN223630908U (en) | 2025-12-05 |
Family
ID=97863538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202423302887.8U Active CN223630908U (en) | 2024-12-31 | 2024-12-31 | Secondary ejection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223630908U (en) |
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2024
- 2024-12-31 CN CN202423302887.8U patent/CN223630908U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |